1002 	int	flag;  member
1028 		state->flag |= FLAG_DSACK_TLP;  in tcp_dsack_seen()
1042 	if (tp->reord_seen && !(state->flag & FLAG_DSACK_TLP))  in tcp_dsack_seen()
1045 	state->flag |= FLAG_DSACKING_ACK;  in tcp_dsack_seen()
1415 					state->flag |= FLAG_ORIG_SACK_ACKED;  in tcp_sacktag_one()
1428 		state->flag |= FLAG_DATA_SACKED;  in tcp_sacktag_one()
1849 	state->flag = 0;  in tcp_sacktag_write_queue()
2025 	return state->flag;  in tcp_sacktag_write_queue()
2355 static bool tcp_time_to_recover(struct sock *sk, int flag)  in tcp_time_to_recover()  argument
2659 void tcp_cwnd_reduction(struct sock *sk, int newly_acked_sacked, int newly_lost, int flag)  in tcp_cwnd_reduction()  argument
2676 		if (flag & FLAG_SND_UNA_ADVANCED && !newly_lost)  in tcp_cwnd_reduction()
2729 static void tcp_try_to_open(struct sock *sk, int flag)  in tcp_try_to_open()  argument
2738 	if (flag & FLAG_ECE)  in tcp_try_to_open()
2878 static void tcp_process_loss(struct sock *sk, int flag, int num_dupack,  in tcp_process_loss()  argument
2884 	if ((flag & FLAG_SND_UNA_ADVANCED || rcu_access_pointer(tp->fastopen_rsk)) &&  in tcp_process_loss()
2892 		if ((flag & FLAG_ORIG_SACK_ACKED) &&  in tcp_process_loss()
2897 			if (flag & FLAG_DATA_SACKED || num_dupack)  in tcp_process_loss()
2899 		} else if (flag & FLAG_SND_UNA_ADVANCED && !recovered) {  in tcp_process_loss()
2924 			tcp_add_reno_sack(sk, num_dupack, flag & FLAG_ECE);  in tcp_process_loss()
2925 		else if (flag & FLAG_SND_UNA_ADVANCED)  in tcp_process_loss()
3009 	int fast_rexmit = 0, flag = *ack_flag;  in tcp_fastretrans_alert()  local
3010 	bool ece_ack = flag & FLAG_ECE;  in tcp_fastretrans_alert()
3011 	bool do_lost = num_dupack || ((flag & FLAG_DATA_SACKED) &&  in tcp_fastretrans_alert()
3058 		if (!(flag & FLAG_SND_UNA_ADVANCED)) {  in tcp_fastretrans_alert()
3065 			tcp_try_to_open(sk, flag);  in tcp_fastretrans_alert()
3069 			if (!tcp_time_to_recover(sk, flag))  in tcp_fastretrans_alert()
3078 		tcp_process_loss(sk, flag, num_dupack, rexmit);  in tcp_fastretrans_alert()
3087 			if (flag & FLAG_SND_UNA_ADVANCED)  in tcp_fastretrans_alert()
3096 		if (!tcp_time_to_recover(sk, flag)) {  in tcp_fastretrans_alert()
3097 			tcp_try_to_open(sk, flag);  in tcp_fastretrans_alert()
3122 static void tcp_update_rtt_min(struct sock *sk, u32 rtt_us, const int flag)  in tcp_update_rtt_min()  argument
3127 	if ((flag & FLAG_ACK_MAYBE_DELAYED) && rtt_us > tcp_min_rtt(tp)) {  in tcp_update_rtt_min()
3138 static bool tcp_ack_update_rtt(struct sock *sk, const int flag,  in tcp_ack_update_rtt()  argument
3159 	    flag & FLAG_ACKED) {  in tcp_ack_update_rtt()
3177 	tcp_update_rtt_min(sk, ca_rtt_us, flag);  in tcp_ack_update_rtt()
3305 	int flag = 0;  in tcp_clean_rtx_queue()  local
3332 			flag |= FLAG_RETRANS_DATA_ACKED;  in tcp_clean_rtx_queue()
3342 				flag |= FLAG_ORIG_SACK_ACKED;  in tcp_clean_rtx_queue()
3368 			flag |= FLAG_DATA_ACKED;  in tcp_clean_rtx_queue()
3370 			flag |= FLAG_SYN_ACKED;  in tcp_clean_rtx_queue()
3397 			flag |= FLAG_SACK_RENEGING;  in tcp_clean_rtx_queue()
3400 	if (likely(first_ackt) && !(flag & FLAG_RETRANS_DATA_ACKED)) {  in tcp_clean_rtx_queue()
3407 		    !(flag & (FLAG_CA_ALERT | FLAG_SYN_ACKED))) {  in tcp_clean_rtx_queue()
3412 			flag |= FLAG_ACK_MAYBE_DELAYED;  in tcp_clean_rtx_queue()
3419 	rtt_update = tcp_ack_update_rtt(sk, flag, seq_rtt_us, sack_rtt_us,  in tcp_clean_rtx_queue()
3422 	if (flag & FLAG_ACKED) {  in tcp_clean_rtx_queue()
3423 		flag |= FLAG_SET_XMIT_TIMER;  /* set TLP or RTO timer */  in tcp_clean_rtx_queue()
3438 			if (flag & FLAG_RETRANS_DATA_ACKED)  in tcp_clean_rtx_queue()
3439 				flag &= ~FLAG_ORIG_SACK_ACKED;  in tcp_clean_rtx_queue()
3457 		flag |= FLAG_SET_XMIT_TIMER;  /* set TLP or RTO timer */  in tcp_clean_rtx_queue()
3492 	return flag;  in tcp_clean_rtx_queue()
3519 static inline bool tcp_ack_is_dubious(const struct sock *sk, const int flag)  in tcp_ack_is_dubious()  argument
3521 	return !(flag & FLAG_NOT_DUP) || (flag & FLAG_CA_ALERT) ||  in tcp_ack_is_dubious()
3526 static inline bool tcp_may_raise_cwnd(const struct sock *sk, const int flag)  in tcp_may_raise_cwnd()  argument
3536 		return flag & FLAG_FORWARD_PROGRESS;  in tcp_may_raise_cwnd()
3538 	return flag & FLAG_DATA_ACKED;  in tcp_may_raise_cwnd()
3547 			     int flag, const struct rate_sample *rs)  in tcp_cong_control()  argument
3558 		tcp_cwnd_reduction(sk, acked_sacked, rs->losses, flag);  in tcp_cong_control()
3559 	} else if (tcp_may_raise_cwnd(sk, flag)) {  in tcp_cong_control()
3607 	int flag = 0;  in tcp_ack_update_window()  local
3614 		flag |= FLAG_WIN_UPDATE;  in tcp_ack_update_window()
3638 	return flag;  in tcp_ack_update_window()
3742 static void tcp_process_tlp_ack(struct sock *sk, u32 ack, int flag)  in tcp_process_tlp_ack()  argument
3752 	} else if (flag & FLAG_DSACK_TLP) {  in tcp_process_tlp_ack()
3765 	} else if (!(flag & (FLAG_SND_UNA_ADVANCED |  in tcp_process_tlp_ack()
3802 static u32 tcp_newly_delivered(struct sock *sk, u32 prior_delivered, int flag)  in tcp_newly_delivered()  argument
3810 	if (flag & FLAG_ECE)  in tcp_newly_delivered()
3817 static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)  in tcp_ack()  argument
3851 			if (!(flag & FLAG_NO_CHALLENGE_ACK))  in tcp_ack()
3865 		flag |= FLAG_SND_UNA_ADVANCED;  in tcp_ack()
3881 	if (flag & FLAG_UPDATE_TS_RECENT)  in tcp_ack()
3884 	if ((flag & (FLAG_SLOWPATH | FLAG_SND_UNA_ADVANCED)) ==  in tcp_ack()
3892 		flag |= FLAG_WIN_UPDATE;  in tcp_ack()
3901 			flag |= FLAG_DATA;  in tcp_ack()
3905 		flag |= tcp_ack_update_window(sk, skb, ack, ack_seq);  in tcp_ack()
3908 			flag |= tcp_sacktag_write_queue(sk, skb, prior_snd_una,  in tcp_ack()
3912 			flag |= FLAG_ECE;  in tcp_ack()
3918 					    flag & FLAG_ECE);  in tcp_ack()
3920 		if (flag & FLAG_WIN_UPDATE)  in tcp_ack()
3945 	flag |= tcp_clean_rtx_queue(sk, skb, prior_fack, prior_snd_una,  in tcp_ack()
3946 				    &sack_state, flag & FLAG_ECE);  in tcp_ack()
3951 		tcp_process_tlp_ack(sk, ack, flag);  in tcp_ack()
3953 	if (tcp_ack_is_dubious(sk, flag)) {  in tcp_ack()
3954 		if (!(flag & (FLAG_SND_UNA_ADVANCED |  in tcp_ack()
3958 			if (!(flag & FLAG_DATA))  in tcp_ack()
3961 		tcp_fastretrans_alert(sk, prior_snd_una, num_dupack, &flag,  in tcp_ack()
3966 	if (flag & FLAG_SET_XMIT_TIMER)  in tcp_ack()
3969 	if ((flag & FLAG_FORWARD_PROGRESS) || !(flag & FLAG_NOT_DUP))  in tcp_ack()
3972 	delivered = tcp_newly_delivered(sk, delivered, flag);  in tcp_ack()
3974 	rs.is_ack_delayed = !!(flag & FLAG_ACK_MAYBE_DELAYED);  in tcp_ack()
3976 	tcp_cong_control(sk, ack, delivered, flag, sack_state.rate);  in tcp_ack()
3982 	if (flag & FLAG_DSACKING_ACK) {  in tcp_ack()
3983 		tcp_fastretrans_alert(sk, prior_snd_una, num_dupack, &flag,  in tcp_ack()
3985 		tcp_newly_delivered(sk, delivered, flag);  in tcp_ack()
3994 		tcp_process_tlp_ack(sk, ack, flag);  in tcp_ack()
4002 		flag |= tcp_sacktag_write_queue(sk, skb, prior_snd_una,  in tcp_ack()
4004 		tcp_fastretrans_alert(sk, prior_snd_una, num_dupack, &flag,  in tcp_ack()
4006 		tcp_newly_delivered(sk, delivered, flag);  in tcp_ack()